The great dog; that is, lion, one of the chief gods of the Assyrians and Babylonians (2 Kings 17:30), the god of war and hunting. He is connected with Cutha as its tutelary deity.
Nergal
1 verse
2 Kings
2 Kings 17:30
And the men of Babylon made Succothbenoth, and the men of Cuth made Nergal, and the men of Hamath made Ashima,
From Easton's Bible Dictionary
Matthew George Easton, 1897